Teat-cup.



A. C. MACARTNEY.

lTI'AT CHP. APPLICATIQN FILED Auza. 1.91'3.

1,146,584; Patented July 13, 1915.

- UNITED s ARTHUR CHICHESTER MACARTNEY, 0F BLGOMFIELD, NERE? 'EISEv`,' EMPIRE CREAM 'SEPARATOR COMPANY, 0F i,.13L0:.iTlEfI, Q'BW JERS'E l TION OF NEW JERSEY.

Q fof/ZIJ felioni 'ih/my mmemn .'Bjiitknown that ARTHUR CmCHicsTnn fM.-il.\"irrx1-:Y, a subject of the King ot' `(ireat ritlaiii, residing at Bloomfield, in the eoiinty 2p lim )een extensivelv used with niilltingT niagjlii'ne.. 'the eiip is provided with a llexiiile lining or inllatioif7 as it is sometimes lied. whieli engages the teat and whieii is eaiiseilfto }idls:'iti iir expand and eontraetliy `2;5 .the aijtion of eonipressed air or sui-tion. or libtl'iih 'llliese' ilexihle linings. whieh have flieretififore eoninionlybeen niade of riililier. l.i`: ili".e. however. lieen the weak point in teat H(-fiiirsof tliis eliaraeter, as they have been iiii iiljlev tof'witlistand for :i reasonable length otl time. the eontiniieil ilexure and distortion to wliiehitlieiy were subjeeted and have been a ,e4 ristant soxiireeoll annoyanee and expense to fifisei.y of in ilkinglr niaelii-nes, y

y(A'n important olijeet ot' the present, inven- .i "tliepio\'isionof a leinforeed lining or liiffrffiiifi'di4 superior strength and durability *itliififii'tf l'osinglr its neeessar iY llexilii ity. "i Illiave shown in the drawing; aeeompanyy4:0 ,ingiiid ,forming na partot' the spee'iieation and ill describe in detail one preferred ein: linient ot' in v invention` lint l do not Kij'to lie understood as limitingF myself to yif sipeeilie einlioiliinent. hut; intendt0 45 eoi'erliny invention broadly and in vits varions applieations.

lln the, drawings: Figure] is a side eleva- )tion oi a teat eiip embodying one vl'orni ol iny infiention. parts of the outer easing of the A. 50a-up and o t' the different coats ot' the lining I' heilig broken away. Fig. 2 is a vertieal seetion through the teat cup shown in Fig. i i-alien Qniiljue4 lI-ll of Fig. l and showing Specification of Letters Patent.

fQfEsse-x and State ot' New Jersey. have in- -i'iroi'ided with a tubular extension portion l1. whien is adapte-d to surround the upper 'mss-ctie. l f i Application filed August 23, 15H3. Serial No 786.5336.

` eollapsed or eontraeted. so asto Compress* the' eowfs tea Fig. l is a horizenal section 'on line i'w'l.' ot 3.

ltet'erringjto the drawinb "in detaii, the numeral l designates tlieoiiter easing o t' the 6e tat rup. which is preiferaiily formed nietal or other .relatively rigid material. Within this easing is mounted a t'iexible. iininter or inflation '.2. a spare rlieini; preferabijy.; proi'iiled between the lining and the insi'ii ot' the easing. The lining is secured at its upper end to the easing: in a-n .'siiitable manner. .\s showinlie iippeizend of the lining` is provided with a lieail'or flange si.. preter-4 anl)Y ol' rounded eross-seeion, and. which is 7@ pa'riiallfv reeeifed within a grooye or recess formeel inl the upper enf."-L olthe ez'itsri'ng and hi'nily gripped and loelieii in positin by nieaiis oi' a eap i'i attached to the endnf tlm easing. The upper enti of the easing and 7b rap are preterabiif proviiieii with engaging serew threads for this purpose. suitable' eainneetior. isuinaile to the interior (if the.l iiningl at or near its lower end 'for the purpose of exhausting the air from the tea't enp so as to eli-aw the inilk ont ol the tea't and t'or the purpose ot' roiidiietiiizfgl away the milk dis" eliarged into the tear eiip. its show-ii a nipple T enters the bottoni oi the lining for this purpose, this nipple also serving in the par 85" l tieiilar embodimento the invention illustra ted. to loek the lower vend of the lining to the easingof the eup. The-.lower end 8 oi the 'easing has an opening 9 therein, The lining 2 is eontracteii at. its lower end, pref- 9G erably in somewhat. rounded. fornnas indi rated at 10. .it its extreme end the lining is end of the nipple "i" and to projert, out of the 95 openingr i) 'in the bottoni of the casing. The nipple is provided with an enlarged er flaring ripper end iL. wliien spreads ont in side of tlievlii'ifingf, and with anannnlnr rib or enlargement ifi whieli distends the ttibii- 190 lar extension' liA of the iining'heiow the Dottoin of the easing' and so ier-iis the iower end ot the lining' firmly7 in position, preventing; the extension portion il. from. being drawn iip tliroiifli the hole in the iotnin of the 3x05 easing during the operation of the device.

'23 is made of such diameter that be forced .through the hole 9 with th .lining squeezed between it and the wall 'if the hole. 'She lining will yield sulheiently to permit this operation to be pmformed, but 'ts elasticity is such that it will hold the nipple firmly in position and be itself locked in position as soon as the rib l fo past the bottom of the cas ing. il strong a nd tight connection between the i 7) ile, lining and casing is thus secured, which, hoi-veter is very easily made and also very i '..sily disconnected, For the latter purpose it is simply necessary to force the nipple and projecing portion ll, of the lining up through tlrf hole 9 or to simply pull vigorously on the upper part of the lining. it will be seen that this connection requires neither cement nor screw clamps, nor extra parts of any kind. The lower end of the nipple T is pref rably formed for engagement with the hose li: through which the suction is applied to tue interior of the linA ing and through which the milk is drawn ofi?. it will be seen that the lining is connected to the casing only near the center of the bottom thereof, so that it curves out or hangs loosl at each side or all around rthus the lining is not ne rib it ran u this connection. drawn taut between its connection with the and its central botuppes" 'edge of the Casing ti. i connection, but provided with a certiun ammu-it of slack so to speak. This slack permits the lining to collapse and compress or support the teat as shown in Figs. 2l and i iritliou. requiring undue stretching' of the material thereof. This construction ofthe lining of particular importance when the lining' virili-'Jalles a fabric reinforce as will be lua'r-ii'iafter described for the reason that .euch a rein force may not permit free stretcl ing of the lining. The rounded o; slack form of the lining obi'iates the necessity for sui'h stretching innings or inflations; for trat cups have :ito'm'r usually been made of rubber, as sui-l'. material is flexible and elastic, and im- -wious and tia-retort, may be kept in.a arf.' rendition. vllubber, however. is not sailliriently strong to withstand the. continued mure and stretching to which the lining i.. a trat cup is necessarily subjected and muih diliicultjir has been experienced lu'riaoi'ia-e with the frequent ruptuae and rapid iv-caring out ol" rubber linings.- Il have ro\.'id. l an imm-cred construction off lining' n'hie'u overcomes these difiiculiliczfi, my improvement musi 'ng unerally in the use of fabric lube preferably Woven seamless if; shionwd lining.` 'ibi tutes the e .wl strength giving member of i ough it may constitute a, mere t of a. rubber lining. in its prei erred emessi;

covered upon one or both sides with rubber or other suitable material to render it air tight `and non absorbent. As shown in the drawings, the teat cup lining comprises an inner layer of rubber, an intermediate layer 1li-'of fabric and an outer layer 17 of rubber. The middle layer 16 is preferably in the form of a. seamless woven, braided or knitted fabric tube which is fashioned in the weaving or otherwise shaped to the outline desiredy for the cup lininO. At its upper end the fabric preferably extends out into the bead l as indicated at 18 solas to strengthen the bead and prevent it from tearing off. Near its lower end the fabric tube is decreased in diameter so as to form the curved portion l() of the lining while the lower end of the fal'irictube is contracted into the tubular extension 11 of the lining. By making the fabric as a seamless tube there are no seams ,or ridges to irritate theI cows teat and there is no weak point in the lining to give way, The tubular fabric mayY also beshaped or fashioned so as to give exactly the contour desired, thus rendering it possible to carry the reinforce throughout all portions of and to the eX- treme ends of the lining.I This is of particular importance, as it is at the ends of the lining where the latter is connected to the casing that the greatest strains and sharpest lexure occur and it is at these points that the linings heretofore used have` most commonly failed. By making the fabric portion of the lining `of a suitable weave it may be given great flexibility and may have that of the rubber itself. This is particularly true where a braided or knitted fabric is used. The fabric and rubber may be cured together in any suitable manner, preferably by vulcanzation.

llflyvimproved fashioned seamless tubular fabric reinforce may obviously be utilized in teat cups of other forms than that illustrated such as single chamber cups having flexible bodies as well as in the linings or flexible members of multiple chamber cups of various forn'is.

Teat cups embodying some o' all of the features of the present invention ma) be applied to milking machines of various an elasticity almost as great as Lianne@ the space 3 between the lining and the casino'. As shown a pipe 19 is connected to the side of the casing for this purpose. Then air is exhausted from the casing through the 5 pipe 1S) so as to equalize. the vacuum ou the two sides of the lining, the lining occupies its normal position as shown in Fig. llvhen air at '.-itmospheric pressure is admitted to the casing through the pipe 19 it permits the collapse or contraction of the lining as shown in Figs. El and l, by the suction constantly maintained in the interior of the lining.. The particular form which the lining will take when collapsed is indeterminate, Figs. f3 and l being intended merely to illustrate this action more or less diagrammatically. The teat cup may be operated in other ways, as for instance by applying suction to the interior thereof through the pipe il intermittently or by appl ying pressure. greate'r than atmospheric through the pipe lll, or by a combination of these agencies, as ma)7 be desired.

llaving thus described one preferred embodiment of my invention as illustrative of the application of the principles.. thereof.I `but without intending to limit myself to the specific features of said embodiment, what l claim and desire to secure by Letters latent is:

l. A flexible' lining for teat cups comprising a seamless ffabric tube lined with-impervious material and adapted to receive a teat within the hollow thereof.

2. A flexible lining for teat cups comprisingv a rubber tube adapted to receive a teat within the hollow thereof, and haring portions tits upper and lower extremities for attachment to a teat cup casing, said rubber tube haring a flexible fabric reinforcement extending throughout the entire circumference oft-he tube and intothe attacliing portions atthe extremities thereof.

3. A fiexible. lining` for teat cups having an attaching bead or flange. at the upper end thereof and a flexible fabric reinforcing member extending into said bead.

4. A flexible lining for teat cups having an extension of reduced diameter at its lower end and a flexible fabric reinforcement extending into said extension.

A iiexible. lining for teat cups compris ing a tubular body portion and a lower end portion of reduced diameter and a fiexible fabric reinforcing member extending into and reinforcing both of said portions.

` G. A flexible lining for teat oups having portions of different diameters anda reinforcing member therefoigiipomprisinga flexible fabric tube shaped ttfthe contour of said lining.

7. A teat cup cbmprising a rigid casing and a flexible tubular liningl extending longitudinally thereof -and removably. secured. .at its ends Wlthin'the eosin said lining oomy of fabric and rubber, said lining having a.

'bead or flange adapted to be clamped between said cap fo-:f easing, the fabric portion of said lining extending out into said bead or flange.

1.0. The combination in a teat cup of a rigid casing with a hole in the. bottom thereof of less dian'ieter than said casing, a fieXible lining mounted in said casing and secured to the same at its upper end, said lining being graduallyT reduced in diameter toward its lowei' end and terminating in a tubular extension protruding through the hole in the bottom of said casing and a nipple extending 'through said protuberant p0rtion of the lining and said hole in the casing into said casing and having anenlarged upper end, the diameter of which is materially less than the maximum inner diameter of said lining.

l1. In a teat cup, the combination with a rigid casing., of a flexible, fabric-reinforced lining secured at its ends to said casing and shaped to provide slack between its points of connection to the casing.

12. .ln a teat cup, the combination with a rigid casing, of a flexible lining secured at its ends to said easingy.. the lower part of said lining being of rolmded form and being secured to the casing near the center oni)7 of the rounded bottom part, whereby slack is provided to permit pnlsation of the finir g, the lining having a fabric body portion eX- tending between. the points of connection' of the same to the casino'.

13. ln a teat cup. the combination of a rigid casiniT having a'. hole in the bottom thereof, a nexible lining mounted in said .'casing and ysecured at its upper end to said casing, the lower end of said lining protruding through the hole in said casing, and a nipple inserted into the protruding part of said lining. and extending Within said casing, said nipple having an enlarged portion within the casing` and an enlarged portion outside of said easing7 the diameter of said second enlarged portion being such that fit will pass through the hole in the bottom of the casing when inclosedwithin the "protuberant portion of the lining, said second enlarged portion acting to dilate the proL truding part of the lining` and secure the lining to the casing when it 4has-been throu h the hole-in said casing'. y l le@ n a teaft cup, the combination Witha rigid casing. haring, arfhole in the bottom passed. v

,ga l 1,146,584

thereof ef materially less diameter than the inner diameter oi' the easing, n flexible lining in seid easing' secured to the saine at its upper end, said lining having n, body portion of nearly the diameter of the easing` extending te near the lower end of the easing and having e rounded lower end with a discharge opening therein of materially less diameter than the inner diuneter of the body porzion of the easing, and a nipple extending threngh the hole in the easing and the .hole in the bottoni. ei' J@he lining and clamping the central part el the bottoni el the lining to he easing, the diameter of the portion gf the lining.)r held to the easing being materially less than the diameter of the body portion of the lining whereby slack is provided in the lining permittingr the seme to collapse between its points of' connection with the easin;Y :it its upper and lower ends.

In witness whereoll I have hereunto set my hund in the presence of two subscribing witnesses.

ARTHUR CIHCHESTER MACARTNEY fitnessesz EDMUND QUINCY MOSES, -LAURA E. SMITH. 

